Because the movie already heightens the toys to being alive the punishment is probably more representative of the emotions and desires of vengeance his sister had.
My friend's sister took a permanent marker and wrote her name and drew a stick figure on his G.I. Joe Terror Drome toy (one of the most expensive in the line at the time). No one hoped she would be haunted by Cobra action figures for her crime.
He even enjoys his work, it's one of the most thankless ones. we see he enjoys music while working.
Since he learned that inanimate objects are alive. What job would he go for? Bro isn't fucked up and working a crappy job. He is trying to save the toys he finds